Help Support Aussie Homebrewer by donating using the link above.

Brew not bubbling

Discussion in 'General Brewing Techniques' started by Leight, 5/9/18.

 

  1. Leight

    New Member

    Joined:
    5/9/18
    Messages:
    4
    Likes Received:
    1
    Gender:
    Male
    Location:
    Nyora
    Posted 5/9/18
    Hi all, can anyone give advice on why my brews not bubbling. I’m brewing a black rock colonial lager (which I found out was 12 months out of date when I got home, and because I live in the bush I brewed it anyway) I’ve added coopers brew enhancer 2 and it’s at 21 degrees. Three days in, no bubbles. Can the yeast stop working at the expiry?
     
  2. Leight

    New Member

    Joined:
    5/9/18
    Messages:
    4
    Likes Received:
    1
    Gender:
    Male
    Location:
    Nyora
    Posted 5/9/18
    Should I add fresh yeast?
     
  3. Thomas Wood

    Well-Known Member

    Joined:
    5/6/18
    Messages:
    120
    Likes Received:
    46
    Gender:
    Male
    Occupation:
    Front End Developer
    Location:
    Newcastle
    Posted 6/9/18
    I've had brews before that didn't bubble at all, and ones that went off like a firecracker, and one that took 60hrs to begin fermentation. First things are to check your gravity, and make sure your fermenter is sealed tight.
     
    koshari, Peterbrew and Leight like this.
  4. nvs-brews

    Well-Known Member

    Joined:
    5/9/14
    Messages:
    193
    Likes Received:
    41
    Gender:
    Male
    Posted 6/9/18
    1/ Did you take a reading to start with?
    If so check to see if there is a difference in gravity.

    2/ do a reading now and check tomorrow.

    3/ is there any krausen, if there is it is fermenting and CO2 is escaping.
     
    Peterbrew and Leight like this.
  5. pnorkle

    Well-Known Member

    Joined:
    28/4/06
    Messages:
    283
    Likes Received:
    127
    Gender:
    Male
    Location:
    Perth
    Posted 6/9/18
    Hi Leight - as the others have said, you really need to check the SG on this & make a comparison to when it was first put down. If you used the kit yeast that came with a one year old kit, there's no telling how old it is (you don't know how long the kit was sitting on the shelf before you bought it..) so the yeast might be buggered. Lack of bubbles through the air lock doesn't mean it's not fermenting, but could mean that the fermenter is not sealed properly, Co2 escaping from somewhere else (as nvs stated.) If you don't have a hydrometer, I strongly suggest you buy one, you really can't tell what's going on without one.

    If no krausen, and SG hasn't changed, if it was me, yeah, I'd throw another *fresh* yeast in there.

    Best of luck.
     
    Leight likes this.
  6. DU99

    Pro

    Joined:
    7/6/10
    Messages:
    6,711
    Likes Received:
    960
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Deer Park.Victoria
    Posted 6/9/18
    Temps a bit high
     
    Leight likes this.
  7. Fatgodzilla

    Beer Soaked Philosopher

    Joined:
    22/5/07
    Messages:
    4,162
    Likes Received:
    345
    Gender:
    Male
    Posted 7/9/18
    No, ok for the yeast. Open the fermenter, take a couple of pictures and post them here. A picture paints a thousand words.
     
  8. nvs-brews

    Well-Known Member

    Joined:
    5/9/14
    Messages:
    193
    Likes Received:
    41
    Gender:
    Male
    Posted 7/9/18
    Dont open the fermenter! jeesh!
     
  9. Markbeer

    Well-Known Member

    Joined:
    21/4/11
    Messages:
    866
    Likes Received:
    255
    Gender:
    Male
    Posted 7/9/18
    You can see if fermentation is under way, that's why you would open. Glad wrap instead of lid and airlock is useful for that purpose.
     
  10. Leight

    New Member

    Joined:
    5/9/18
    Messages:
    4
    Likes Received:
    1
    Gender:
    Male
    Location:
    Nyora
    Posted 11/9/18
    Can’t find a leak in the fermenter, still no bubbling at the airlock. Sg on day 3 was 1.024, day 4 1.022, day 8 1.016. Is this ok? It’s only my 7th brew, and for the other 6 I didn’t check sg readings, just bottled on the 8th day
     
    blacktop™ likes this.
  11. Hangover68

    Well-Known Member

    Joined:
    12/7/17
    Messages:
    104
    Likes Received:
    37
    Gender:
    Male
    Location:
    St Helena, Melbourne NE.
    Posted 11/9/18
    Yeast will be dead. I used a cascade tin I got in Tassie that was over 10yo , yeast didn't start so got a fresh sachet and all good.
     
  12. Leight

    New Member

    Joined:
    5/9/18
    Messages:
    4
    Likes Received:
    1
    Gender:
    Male
    Location:
    Nyora
    Posted 11/9/18
    If the sg is dropping tho doesn’t it mean that the yeast is working?
     
  13. Schikitar

    Well-Known Member

    Joined:
    26/3/17
    Messages:
    404
    Likes Received:
    150
    Gender:
    Male
    Location:
    Tasmania
    Posted 11/9/18
    Mate, your numbers are dropping, that's good! Without knowing your recipe, what yeast, your OG and expected FG it's a bit hard to say it's done but.. I'd be inclined to leave it for 10 days at least, check the gravity for the next 2-3 days and see if it stops dropping, I'd say you're close though.

    The brew I have on now is the first one where I haven't had any airlock activity but I'm pretty certain it's fermenting fine - I can smell the CO2 in the fermenting fridge (leak!) and the fast ferment I have running in parallel has fermented like a beast. Anyway, good luck!
     
  14. pnorkle

    Well-Known Member

    Joined:
    28/4/06
    Messages:
    283
    Likes Received:
    127
    Gender:
    Male
    Location:
    Perth
    Posted 11/9/18
    Dude - CO2 is odourless...
     
    Peterbrew and Indian Giver like this.
  15. altone

    Well-Known Member

    Joined:
    4/6/09
    Messages:
    564
    Likes Received:
    105
    Gender:
    Male
    Occupation:
    Kept man
    Location:
    Melbourne's East
    Posted 12/9/18
    Sad but true sometimes, if you are not certain of the answer at least google it before posting.

    If the gravity is dropping it's fermenting ergo yeast is alive! (or you've got some wild yeast in there that might give you a very interesting result)
    No bubbles - the CO2 is escaping somewhere else - don't sweat it!

    As pnorkle said CO2 is odorless BUT as the gas escapes it drags the yeasty smell out with it.

    Anyway if the gravity is dropping - all good, when it stays constant for a few days - it's done.
    Taste the stuff in the hydrometer tube - does it taste like green beer? - great!
    If it's like vinegar, sweaty socks or sugar water - well it's time to start again.

    As for the old guys - they are mostly still around, but not here.
     
    Prawnlips, desmogod, pnorkle and 2 others like this.
  16. Schikitar

    Well-Known Member

    Joined:
    26/3/17
    Messages:
    404
    Likes Received:
    150
    Gender:
    Male
    Location:
    Tasmania
    Posted 12/9/18
    Dude, not when it's got malt, yeast and hops piggy-backing on its coat tails. Dude.
     
  17. Thomas Wood

    Well-Known Member

    Joined:
    5/6/18
    Messages:
    120
    Likes Received:
    46
    Gender:
    Male
    Occupation:
    Front End Developer
    Location:
    Newcastle
    Posted 12/9/18
    Feel free to contribute this good knowledge and debunk the rubbish
     
    Schikitar likes this.
  18. Schikitar

    Well-Known Member

    Joined:
    26/3/17
    Messages:
    404
    Likes Received:
    150
    Gender:
    Male
    Location:
    Tasmania
    Posted 12/9/18
    Given that you only joined the forum in late August I'm surprised you know who they are!?
     
  19. Hermies

    Well-Known Member

    Joined:
    11/5/17
    Messages:
    183
    Likes Received:
    51
    Posted 12/9/18
    The reason why your airlock is not bubbling,is your lid is not screwed down tight enough and the Co2 is leaking out through the seal .Don't worry too much about it just let it do its thing and then after a week to ten days check the gravity do this for two to three days in a row if the gravity reading remains the same chill it down for a couple of days and then package it. RDWHAHB .
     
    Schikitar likes this.
  20. Schikitar

    Well-Known Member

    Joined:
    26/3/17
    Messages:
    404
    Likes Received:
    150
    Gender:
    Male
    Location:
    Tasmania
    Posted 12/9/18
    So based on that logic, because you're not even a month old here, you clearly have nothing to offer any of us and your opinions and experience are null and void. No worries, it makes sense now.

    Had you even considered that people like myself and others are passing on things we have learnt from those same guys you refer to?
     

Share This Page